click below
click below
Normal Size Small Size show me how
Genetics
| Term | Definition |
|---|---|
| feature | a characteristic that all members of a species has |
| trait | a specific characteristic of an individual organism |
| variation | any difference in traits between individual organisms |
| function | how something works |
| protein molecules | a type of large molecule that performs important functions inside organisms |
| structure | the way something is shaped or constructed |
| gene | an instruction foe making a protein molecule |
| gene version/allele | a specific form of a gene that provides instructions for making a particular protein molecule |
| mutation | a random change to a gene that sometimes results in a new trait |
| heterozygous | having gene versions that are different |
| homozygous | having gene versions that are the same |
| inherit | to receive genes from a parent |
| sexual reproduction | the process in which two parents pass on their genes to create offspring |
| asexual reproduction | the process in which only one parent passes on its genetic information to create offspring = cloning |
| recessive | the trat is inherited only if the offspring inherits 2 copies of the allele for that trait (represented by lower case letters) |
| dominant | the trait is inherited as long as the offspring receives at least one copy of the allele for that trait (represented with capital letters) |
| chromosome | a long piece of DNA that contains many genes |
| DNA (deoxyribonucleic acid) | a type of molecule that genes and chromosomes are made of |